[quote=@Frettzo]
They just seem way too easy to gain. You said it yourself, Zerabil got 3 levels in a single day, it should've taken years of training and experiences imo. It should take all heroes a huge amount of time or an exceptional dedication to their respective areas to level up. Kuro for example is 46 years old at the moment and can beat a group of 5 soldiers in a fist fight. After 40 years of [i]daily training[/i].

Because why would a God create a Hero and level them up himself instead of creating an avatar, which is arguably a ton more powerful than any common hero?
[/quote]

I completely understand the point you make, but I think you may be over-analysing levels. The fact that they're easy to gain is mostly due to the fact that the Khookie requirements for each level up to level 10 can be gained with a single post. At the moment, all these level twenty-something Heroes will require at least three Khookies worth of posts for even one level, so leveling up for them will stall considerably. 
[hider=To Put Things In Perspective]
[list]
[*] Level 1-2: 5 Khookies
[*] Level 2-3: 6 Khookies
[*] Level 3-4: 9 Khookies
[*] Level 4-5: 10 Khookies
[*] Level 5-6: 15 Khookies
[*] Level 6-7: 16 Khookies
[*] Level 7-8: 19 Khookies
[*] Level 8-9: 20 Khookies
[*] Level 9-10: 25 Khookies
[*] Level 10-11: 26 Khookies
[*] Level 11-12: 29 Khookies
[*] Level 12-13: 30 Khookies
[*] Level 13-14: 35 Khookies
[*] Level 14-15: 36 Khookies
[*] Level 15-16: 39 Khookies
[*] Level 16-17: 40 Khookies
[*] Level 17-18: 45 Khookies
[*] Level 18-19: 46 Khookies
[*] Level 19-20: 49 Khookies
[*] Level 20-21: 50 Khookies
[*] Level 21-22: 55 Khookies
[*] Level 22-23: 56 Khookies
[*] Level 23-24: 59 Khookies
[*] Level 24-25: 60 Khookies
[/list]
[/hider]
It's just important that the difference between a normal mortal (Level 0) and a regular Hero (level 10) is given some weight. In the end, as I have said many times, quality RPing trumps statistics for me any day. If Kuro comes up against Zerabil and proves himself to be a mighty mortal indeed, then there is nothing to say he can't defeat a Hero - how can we say that a Hero may be able to defeat a demigod with time if we cannot also say that a normal mortal cannot defeat a Hero with time?

Further, beating five soldiers in a fist-fight is fair enough, but you need to take other factors into account. Kuro will have weapons at hand, and even if he does not, he has Wi as well as his own martial art. When these are combined, the average soldier stands no chance against such dedication. The average five soldiers don't stand a chance. While these are normal humans, this is also a fantasy setting and humans can be expected to reach absurd levels of power if they have, as Kuro has, put the training and the years in. If you add the fact that EVERY NIGHT humans are facing terrors from their wildest nightmares, I'd say that the likes of Kuro and Zerabil and Ialu, who can face these creatures of the night, would grow even faster than one who simply trains all day everyday.

Also, remember that all current Heroes were born Heroes, thus they could only start at level 1. We have not yet had a case like Kuro's where one was mortal and had a life before. I will have to judge whatever post you put up and his level will have to be worked out taking his 46-year development as a mortal into account.

To make a long story short, don't worry over-much about levels. They're important and fun, but nothing game-breaking.

(Note: Levels work a tad differently for Ialu since he's attempting to ascend to godhood)

As for the whole Avatar thing, it really is not as interesting to play an Avatar as opposed to a mortal who has potential and actually develops as a character, ages etc.